NUKR cam follower


Track rollers - NUKR cam follower

Technical Drawing and Exploded View - NUKR cam follower

C.R. Special Profile
1. Seal  sheet
2. Support thrust ring
3. Pivot
4. Outer ring
5. Cylindrical rollers
6. Seal sheet


Technical Data - NUKR cam follower

CR rif/ref D (mm) d(h7) (mm) c (mm) rmin (mm) B (mm) B1 (mm) B2 (mm) G (mm) g (mm) M (mm) C1 (mm) d2 (mm) CH (mm) Cw (KN) Cow (KN) Vel Max Speed RPM min-1 Coppia serr. Dado / Nut locking couple (Nm) Cm3
NUKR 35 35 16 18 0,6 52 32,5 7,8 M16x1,5 17 3 0,8 20 8 5 16,8 6500 58
NUKR 40 40 18 20 1 58 36,5 8 M18x1,5 19 3 0,8 22 8 18,4 22,6 5500 87
NUKR 47 47 20 24 1 66 40,5 9 M20x1,5 21 4 0,8 27 10 28 35 4200 120
NUKR 52 52 20 24 1 66 40,5 9 M20x1,5 21 4 0,8 31 10 29 37,5 3400 120
NUKR 62 62 24 28 1 80 49,5 11 M24x1,5 25 4 1,3 38 14 40 50 2600 220
NUKR 72 72 24 28 1,1 80 49,5 11 M24x1,5 25 4 1,3 44 14 44,5 60 2100 220
NUKR 80 80 30 35 1,1 100 63 15 M30x1,5 32 4 1 47 14 69 98 1800 450
NUKR 90 90 30 35 1,1 100 63 15 M30x1,5 32 4 1 47 14 79 117 1800 450

Pressure greaser
NIP A2x7,5: NUKR 35 - NUKR 40 - NUKR 47 - NUKR 52
NIP A3x9,5: NUKR 62 - NUKR 72 - NUKR 80 - NUKR 90

Adaptor for central lubrication
AP8: NUKR 35 - NUKR 40
AP10: NUKR 47 - NUKR 52
AP14: NUKR 62 - NUKR 72 - NUKR 80 - NUKR 90

Cw: Dynamic load  -  Cow: Static load

Technical Characteristics - NUKR cam follower

The main characteristic of this series of rollers is the high thickness of the outer ring, which is suitable to bear specific high pressures and the impacts that characterize the use of these bearings (ex. cam followers).

Other important features of these bearings are:
  • Outer ring with double border of the rollers obtained entirely on the outer ring and accurately grinded to allow the roller to bear loads with axial components. The ring is usually cambered on the outer part, in order to improve working condition with heavy loads and to prevent the concentration of load onto side bands of the raceway. Rollers with cylindrical outer surface can be supplied on request.Pivot with threaded shank, one guide border of rollers obtained entirely and tempered rolling raceway.
  • On the front part, a seat for hexagon wrench or for corkscrew (on request) can be foreseen.
  • Sealing steel sheets forced on the outer diameter to form a safe labyrinth protection system.
  • Full complement of grinded flat-head cylindrical rollers.
  • Lubrication channels and holes in the pivot.
  • Tolerance of execution according to normal class, possibility of special execution according to class P5 (DIN 620).